TWI750262B - Multi-pinion arrangement and bicycle drive having a multi-pinion arrangement of said type - Google Patents

Multi-pinion arrangement and bicycle drive having a multi-pinion arrangement of said type Download PDF

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TWI750262B
TWI750262B TW106140323A TW106140323A TWI750262B TW I750262 B TWI750262 B TW I750262B TW 106140323 A TW106140323 A TW 106140323A TW 106140323 A TW106140323 A TW 106140323A TW I750262 B TWI750262 B TW I750262B
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Taiwan
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sprocket
teeth
tooth
chain
arrangement
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TW106140323A
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Chinese (zh)
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TW201825351A (en
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安德烈斯 凡奈德
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德商矢倫德國股份有限公司
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M9/00—Transmissions characterised by use of an endless chain, belt, or the like
    • B62M9/04—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio
    • B62M9/06—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like
    • B62M9/10—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like involving different-sized wheels, e.g. rear sprocket chain wheels selectively engaged by the chain, belt, or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M9/00—Transmissions characterised by use of an endless chain, belt, or the like
    • B62M9/04—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M9/00—Transmissions characterised by use of an endless chain, belt, or the like
    • B62M9/04—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio
    • B62M9/06—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like
    • B62M9/10—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like involving different-sized wheels, e.g. rear sprocket chain wheels selectively engaged by the chain, belt, or the like
    • B62M9/105—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like involving different-sized wheels, e.g. rear sprocket chain wheels selectively engaged by the chain, belt, or the like involving front sprocket chain-wheels engaged by the chain, belt or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M9/00—Transmissions characterised by use of an endless chain, belt, or the like
    • B62M9/04—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio
    • B62M9/06—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like
    • B62M9/10—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like involving different-sized wheels, e.g. rear sprocket chain wheels selectively engaged by the chain, belt, or the like
    • B62M9/12—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like involving different-sized wheels, e.g. rear sprocket chain wheels selectively engaged by the chain, belt, or the like the chain, belt, or the like being laterally shiftable, e.g. using a rear derailleur
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M9/00—Transmissions characterised by use of an endless chain, belt, or the like
    • B62M2009/005—Details of transmission chains specially adapted for bicycles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M9/00—Transmissions characterised by use of an endless chain, belt, or the like
    • B62M9/04—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio
    • B62M9/06—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like
    • B62M9/10—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like involving different-sized wheels, e.g. rear sprocket chain wheels selectively engaged by the chain, belt, or the like
    • B62M9/12—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like involving different-sized wheels, e.g. rear sprocket chain wheels selectively engaged by the chain, belt, or the like the chain, belt, or the like being laterally shiftable, e.g. using a rear derailleur
    • B62M9/121—Rear derailleurs
    • B62M9/124—Mechanisms for shifting laterally
    • B62M9/1244—Mechanisms for shifting laterally limiting or positioning the movement
    • B62M9/1246—Mechanisms for shifting laterally limiting or positioning the movement using cams or plates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M9/00—Transmissions characterised by use of an endless chain, belt, or the like
    • B62M9/04—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio
    • B62M9/06—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like
    • B62M9/10—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like involving different-sized wheels, e.g. rear sprocket chain wheels selectively engaged by the chain, belt, or the like
    • B62M9/12—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like involving different-sized wheels, e.g. rear sprocket chain wheels selectively engaged by the chain, belt, or the like the chain, belt, or the like being laterally shiftable, e.g. using a rear derailleur
    • B62M9/121—Rear derailleurs
    • B62M9/126—Chain guides; Mounting thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M9/00—Transmissions characterised by use of an endless chain, belt, or the like
    • B62M9/16—Tensioning or adjusting equipment for chains, belts or the like

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Gears, Cams (AREA)

Abstract

The invention relates to a sprocket for a multi-sprocket arrangement for rotatable mounting on a rear-wheel axle and for engaging with a bicycle chain with chain inner link plate pairs and chain outer link plate pairs, wherein the sprocket has, between an axial inner side and an oppositely situated axial outer side, a flat sprocket body and a multiplicity of teeth formed on a circumference of the sprocket, wherein the multiplicity of teeth comprises at least one tooth of a first tooth group, the axial width of which is dimensioned to be greater than a chain inner link plate spacing and smaller than a chain outer link plate spacing, and comprises teeth of a second tooth group, the axial width of which is dimensioned to be smaller than the chain inner link plate spacing, wherein, viewed in a circumferential direction, at least one sequence of three teeth is provided in which a tooth of the second tooth group, a tooth of the first tooth group and another tooth of the second tooth group are arranged directly in succession, wherein the at least one tooth of the first tooth group has a first projection in an axial direction, which is produced by a material deformation.

Description

多重小齒輪配置及具有此種多重小齒輪配置之自行車驅動器Multiple pinion arrangement and bicycle drive having such multiple pinion arrangement

本發明係有關於鏈輪、用於安裝在一後輪輪轂上且具有此種鏈輪之多重鏈輪配置、及具有此種多重小齒輪配置之自行車驅動器。 The present invention relates to sprockets, multiple sprocket arrangements having such sprockets for mounting on a rear wheel hub, and bicycle drives having such multiple pinion arrangements.

文獻DE 10 2012 023 819 A1揭露用於附接在一自行車之一踏板曲柄上的一前鏈輪，該鏈輪與習知鏈輪不同點在於較佳之鏈條引導。該較佳之引導特性使得在一自行車之一踏板曲柄上使用單一此種鏈輪時，可不需要另外之鏈條引導件。當朝該踏板曲柄之一軸向看時，該鏈輪具有在一圓周方向上交替地配置之厚與薄齒的情形中，可特別地達成該較佳之引導特性。該等鏈輪不適合使用在一後輪輪轂上，因為該特別好之鏈條引導特性與對一相鄰鏈輪之傳送衝突。 Document DE 10 2012 023 819 A1 discloses a front sprocket for attachment to a pedal crank of a bicycle, which differs from known sprockets by a better chain guide. The better guide characteristics allow the use of a single such sprocket on a pedal crank of a bicycle without the need for additional chain guides. The better guiding characteristics are particularly achieved in the case where the sprocket has thick and thin teeth alternately arranged in a circumferential direction, when viewed in an axial direction of the pedal crank. These sprockets are not suitable for use on a rear wheel hub because the particularly good chain guiding characteristics conflict with transmission to an adjacent sprocket.

類似前鏈輪配置揭示在US 2014/0338494 A1、DE 10 2014 019 528 A1、DE 10 2015 006 582 A1及DE 10 2015 000 715 A1中。所有該等文獻揭露具有不 同設計之齒的前鏈輪，其中該等設計係特別聚焦在穩定之鏈條引導。在一踏板曲柄之多重鏈輪配置上之換檔程序及相關要求與一自行車之一後輪輪轂的一多重小齒輪配置的換檔程序及相關要求明顯不同。在一驅動鏈輪(在該踏板曲柄上)之情形中，該鏈條滾子在各情形中被該鏈輪之負載齒腹收納。該驅動方向預界定使得該換檔程序必須在一負載條中實施。在一輸出鏈輪，例如附接在一自行車後軸上之一多重小齒輪配置的一小齒輪的情形中，該鏈條滾子在各情形中在該驅動器之空轉條中的進入齒腹上或靠近該進入齒腹進入。該鏈條引導係藉由該換檔機構有齒滾子來實現，使得在各鏈輪上之進入情況不涉及任何明顯歪斜。這產生與在一自行車後輪上之一後鏈輪(或小齒輪)及在該踏板曲柄上之一前鏈輪的換檔程序及引導完全不同之目的。 Similar front sprocket configurations are disclosed in US 2014/0338494 A1, DE 10 2014 019 528 A1, DE 10 2015 006 582 A1 and DE 10 2015 000 715 A1. All such documents disclose that there is no Front sprocket with teeth of the same design, where the design is particularly focused on stable chain guidance. The shifting procedures and associated requirements for a multiple sprocket configuration of a pedal crank are significantly different from those for a multiple pinion configuration for a rear wheel hub of a bicycle. In the case of a drive sprocket (on the pedal crank), the chain rollers are in each case received by the load flanks of the sprocket. The drive direction is predefined so that the shifting procedure has to be carried out in a load strip. In the case of an output sprocket, such as the pinion of a multi-pinion arrangement attached to the rear axle of a bicycle, the chain rollers are in each case on the entry flanks in the idler bar of the drive or near the entry into the tooth flank. The chain guidance is achieved by the gearshift geared rollers so that the entry on the sprockets does not involve any significant skew. This serves a completely different purpose than the shifting procedure and guidance of a rear sprocket (or pinion) on the rear wheel of a bicycle and a front sprocket on the pedal crank.

在後多重小齒輪配置上之小齒輪數目近年來不斷增加。與一、二或三個前鏈輪組合之十一或十二個小齒輪構成一般自行車驅動器。現在之驅動器甚至使用十三或十四個小齒輪與一或兩個前鏈輪組合。但是小齒輪數目增加亦產生某些問題。因此，隨著小齒輪數目增加，鏈條歪斜亦增加，而這對運轉特性及該自行車驅動器之效率有不利之影響。若該鏈條與最小小齒輪或最大小齒輪接合，該鏈條歪斜特別顯著。在最大小齒輪上之該特別顯著鏈條歪斜的負面結果可用不同方式消除。例如，有助於較佳地引導該鏈條及防止不正確換檔之方法是習知的。 The number of pinions on the rear multiple pinion arrangement has been increasing in recent years. Eleven or twelve pinions in combination with one, two or three front sprockets constitute a general bicycle drive. Modern drives even use thirteen or fourteen pinions in combination with one or two front sprockets. However, the increase in the number of pinions also creates certain problems. Therefore, as the number of pinions increases, so does the chain skew, which has a detrimental effect on the running characteristics and the efficiency of the bicycle drive. The chain skew is particularly noticeable if the chain is engaged with the smallest or largest pinion. The negative result of this particularly pronounced chain skew on the largest pinion can be eliminated in different ways. For example, methods are known to help guide the chain better and prevent incorrect shifting.

這些方法中之一方法揭露在DE 10 2015 219 522 A1中。該多重小齒輪配置具有一薄與厚齒序列。在此，該等厚齒之軸向寬度尺寸係作成使得它們可適當地接合在一外鏈板對之中間空間中而非接合在一內鏈板對之中間空間中。該等薄齒可同時與一外鏈板對及一內鏈板對接合。該配置改善該鏈條之引導行為且未損害換檔能力。但是，在該等習知多重小齒輪配置之情形中的一問題是製程昂貴且耗時。通常，具有厚與薄齒之該等小齒輪係藉由切割製程，特別是銑削或車削來製造。換言之，所使用之起始材料具有對應於該等厚齒之軸向寬度的至少一軸向寬度。接著藉由移除材料，例如藉由銑削來產生該等薄齒。這製程非常耗材且耗時並且因此亦昂貴。 One of these methods is disclosed in DE 10 2015 219 522 A1. The multiple pinion arrangement has a sequence of thin and thick teeth. Here, the axial widths of the thick teeth are dimensioned so that they can properly engage in the intermediate space of an outer pair of link plates rather than the intermediate space of an inner pair of link plates. The thin teeth can be engaged with an outer link plate pair and an inner link plate pair at the same time. This configuration improves the guiding behavior of the chain without compromising shifting ability. However, a problem in the case of these conventional multiple pinion configurations is that the process is expensive and time consuming. Usually, these pinion gear trains with thick and thin teeth are produced by cutting processes, in particular milling or turning. In other words, the starting material used has at least one axial width corresponding to the axial width of the thick teeth. The thin teeth are then created by removing material, eg by milling. This process is very consumable and time-consuming and therefore expensive.

EP1 764 296 A1揭露在一多重小齒輪配置之小齒輪上的材料變形。但是，該配置未改善鏈條引導亦沒有可靠之換檔。除了在換檔通道中以外，顯示小齒輪之全部齒在外側或面向下一個較小小齒輪之側具有一突起。全部齒，即變形齒及未變形齒之齒厚度在這情形中的尺寸係作成使得它們可同時接合該等外鏈板對及該等內鏈板對。在該等齒，及具有突起之齒以及該等外鏈板間的間隙對應地為大且未提供該鏈條在該等後小齒輪上之適當引導。此外，幾乎全部齒都具有形成在該等小齒輪外側的一突起。因為該鏈條會與該等突起碰撞，所以該等突起在換檔時具有一破壞效果。此外，該等大量突起之製造繁複。 EP1 764 296 A1 discloses material deformation on the pinions of a multiple pinion arrangement. However, this configuration does not improve chain guidance nor reliable shifting. All teeth of the pinion are shown with a protrusion on the outside or facing the next smaller pinion, except in the shift channel. All teeth, ie the tooth thicknesses of the deformed and undeformed teeth, are in this case dimensioned such that they can engage the pair of outer links and the pair of inner links simultaneously. The gaps between the teeth, and the teeth with protrusions and the outer link plates are correspondingly large and do not provide proper guidance of the chain on the rear pinions. Furthermore, almost all of the teeth have a protrusion formed on the outside of the pinions. Because the chain can collide with the protrusions, the protrusions have a disruptive effect when shifting gears. Furthermore, the manufacture of these large numbers of protrusions is complicated.

因此，欲解決之問題係提供用於一後多重鏈輪配置之容易製造的便宜鏈輪，該鏈輪允許可靠地換檔且為該鏈條提供適當引導。 Therefore, the problem to be solved is to provide an inexpensive sprocket that is easy to manufacture for a rear multiple sprocket configuration, which allows reliable shifting and provides proper guidance for the chain.

該目的係藉由一種用於可旋轉地安裝在一後輪軸上及用於與一自行車鏈條接合之一多重鏈輪配置的鏈輪來達成。該自行車鏈條包含鏈條內鏈板對及鏈條外鏈板對。該鏈輪在一軸向內側與一相對位置之軸向外側間具有一平坦鏈輪本體。複數齒形成在該鏈輪之一圓周上。該等複數齒包含一第一齒組中之至少一齒，且該第一齒組中之至少一齒之軸向寬度尺寸係作成比一鏈條內鏈板間距大且比一鏈條外鏈板間距小。該等複數齒更包含一第二齒組之多數齒，且該等第二齒組之多數齒之軸向寬度尺寸係作成比該鏈條內鏈板間距小；其中，於一圓周方向看時，設有該第二齒組之一齒、該第一齒組之一齒及該第二齒組之另一齒直接依序配置的至少一三齒序列；其中該第一齒組中之該至少一齒在一軸向上具有藉由一材料變形而產生之一突起。 This object is achieved by a sprocket for rotatably mounting on a rear axle and for engaging with a bicycle chain in a multiple sprocket configuration. The bicycle chain includes a chain inner chain plate pair and a chain outer chain plate pair. The sprocket has a flat sprocket body between an axial inner side and an opposite axial outer side. A plurality of teeth are formed on one circumference of the sprocket. The plurality of teeth include at least one tooth in a first tooth group, and the axial width dimension of at least one tooth in the first tooth group is made larger than the distance between the inner link plates of a chain and larger than the distance between the outer link plates of a chain small. The plurality of teeth further include a plurality of teeth of a second tooth group, and the axial width dimension of the plurality of teeth of the second tooth group is made smaller than the distance between the inner link plates of the chain; wherein, when viewed in a circumferential direction, There is at least one three-tooth sequence in which one tooth of the second tooth group, one tooth of the first tooth group and another tooth of the second tooth group are directly arranged in sequence; wherein the at least one of the first tooth group A tooth has a protrusion produced by deformation of a material in an axial direction.

該鏈輪之軸向內側在這情形中對應於在該多重鏈輪配置之組合狀態中朝向下一個較大鏈輪之方向的側。該鏈輪之外側對應地朝向下一個較小鏈輪之方向。 The axially inner side of the sprocket corresponds in this case to the side in the direction of the next larger sprocket in the combined state of the multiple sprocket arrangement. The outer side of the sprocket correspondingly faces the direction of the next smaller sprocket.

一薄齒、厚齒及薄齒序列對該鏈條引導具有一正面效果，因為該等厚齒填塞該鏈條之該等外鏈板間之間隙的程度比該等常態薄齒大。該鏈條因此相對於該小齒 輪具有較小移動自由。這序列本身可沿著一小齒輪之圓周重覆數次。 A thin tooth, thick tooth and thin tooth sequence has a positive effect on the chain guide, because the thick tooth fills the gap between the outer link plates of the chain to a greater extent than the normal thin tooth. The chain is thus relative to the small tooth Wheels have less freedom of movement. This sequence itself can be repeated several times along the circumference of the pinion.

由於藉由一材料變形產生該突起，可便宜地且快速地製造該鏈輪。所有突起可在一工作步驟中，例如藉由衝壓製成且不必依序個別地銑削。 Since the protrusion is produced by a material deformation, the sprocket can be manufactured cheaply and quickly. All protrusions can be produced in one working step, for example by stamping, and do not have to be milled individually in sequence.

在本發明之一改良例中，該鏈輪本體具有一軸向寬度B3，該軸向寬度B3實質地對應於該第二齒組之齒的軸向寬度B2。該鏈輪本體之軸向寬度B3因此比該第一齒組中之至少一齒的軸向寬度B1小。 In a modified example of the present invention, the sprocket body has an axial width B3 substantially corresponding to the axial width B2 of the teeth of the second tooth group. The axial width B3 of the sprocket body is therefore smaller than the axial width B1 of at least one tooth of the first tooth set.

可有利地利用一薄且輕量之起始材料。 A thin and lightweight starting material can be advantageously utilized.

在一示範實施例中，該第一齒組之該齒的軸向寬度B1等於該鏈條外鏈板間距D1之65至85%，特別是68%，且該第二齒組之齒的軸向寬度B2等於該鏈條內鏈板間距D2之65至85%，特別是79%。對大致同寬且與該鏈條內鏈板間距配合之所有齒的習知技術而言，相對該鏈條外鏈板間距D1之一薄齒(在這情形中為1.7mm)的填塞度只等於47%。相反地，依據本發明之鏈輪之厚齒的68%填塞度相對習知技術構成一相當大改良。 In an exemplary embodiment, the axial width B1 of the teeth of the first tooth group is equal to 65 to 85%, especially 68%, of the distance D1 between the outer link plates of the chain, and the axial width of the teeth of the second tooth group is equal to The width B2 is equal to 65 to 85%, in particular 79%, of the distance D2 between the plates of the chain. For the prior art of all teeth of approximately the same width and matched with the distance between the inner links of the chain, the packing degree of a thin tooth (1.7 mm in this case) relative to the distance D1 of the outer links of the chain is only equal to 47. %. In contrast, the 68% packing of the thick teeth of the sprocket according to the present invention constitutes a considerable improvement over the prior art.

該第一齒組之該齒的軸向寬度B1尺寸在這情形中係作成比該第二齒組之該等齒的軸向寬度B2大40至50%，特別是47%。 The axial width B1 of the teeth of the first tooth set is dimensioned in this case to be 40 to 50%, in particular 47% larger than the axial width B2 of the teeth of the second tooth set.

在本發明之一改良例中，該突起形成在該鏈輪之內側。更詳而言之，該突起形成在該第一齒組之該齒的內側。在此，該內側對應於在該多重鏈輪配置之組合狀 態中朝向該下一個較大鏈輪之方向的該鏈輪側。 In a modified example of the present invention, the protrusion is formed on the inner side of the sprocket. More specifically, the protrusion is formed on the inner side of the tooth of the first tooth group. Here, the inner side corresponds to the combined shape in the arrangement of the multiple sprockets The side of the sprocket in the direction of the next larger sprocket in the state.

位置與該內側相對之該鏈輪或該齒的外側沒有突起。換言之，該等突起只位在該鏈輪之一軸向側。這具有該外側可供換檔通道使用，且該鏈條在換檔時不與在該內側之突起碰撞的優點。 There is no protrusion on the outside of the sprocket or the tooth located opposite the inside. In other words, the protrusions are located only on one axial side of the sprocket. This has the advantage that the outer side is available for the shifting channel and the chain does not collide with the protrusions on the inner side when shifting gears.

在本發明之一改良例中，該突起係於一徑向方向由該厚齒之齒尖延伸至該厚齒之齒根。 In a modified example of the present invention, the protrusion is extended in a radial direction from the tooth tip of the thick tooth to the tooth root of the thick tooth.

在本發明之一改良例中，該突起係於一徑向方向延伸遠至但未超出齒根圓直徑。 In a modification of the present invention, the protrusion extends in a radial direction as far as but not beyond the root circle diameter.

在本發明之一改良例中，該突起在其徑向外端上具有一斜面。該突起之斜面朝一徑向延伸遠至該齒尖且轉變成類似地配置在該內側的該齒尖之一內斜面。兩斜面都具有相同傾斜角且因此形成一連續平面。 In a modification of the present invention, the protrusion has a slope on its radially outer end. The bevel of the protrusion extends radially as far as the tooth tip and transforms into an inner bevel of the tooth tip similarly disposed on the inside. Both slopes have the same angle of inclination and thus form a continuous plane.

當由側邊看時，該突起具有一多邊形，特別是矩形。這形狀可藉由材料變形輕易地產生。此外，一矩形為該鏈條提供一足夠引導表面。 When viewed from the side, the protrusion has a polygonal shape, in particular a rectangle. This shape can be easily created by deformation of the material. Furthermore, a rectangle provides a sufficient guide surface for the chain.

在本發明之一改良例中，當朝與一徑向線正交之一截面看時，該突起具有一U形或V形橫截面。該橫截面形狀由於在一側(外側)之衝壓凹槽及在相對側(內側)獲得之突起產生。該U形橫截面特別提供一良好引導表面。 In a modification of the present invention, the protrusion has a U-shaped or V-shaped cross-section when viewed in a section orthogonal to a radial line. The cross-sectional shape results from the punched grooves on one side (outside) and the protrusions obtained on the opposite side (inside). The U-shaped cross section provides in particular a good guiding surface.

在本發明之一改良例中，該鏈輪在該內側，在各情形中具有用於收納一鏈條內鏈板在該第二齒組之該等齒區域中的一凹孔。該凹孔具有一小軸向寬度B5且宜藉由衝壓產生。 In a refinement of the invention, the sprocket has, on the inside, in each case a recess for receiving a chain inner link plate in the region of the teeth of the second set of teeth. The recess has a small axial width B5 and is preferably produced by punching.

在本發明之一改良例中，呈一凹部之形態的一換檔通道配置在該鏈輪之外側。特別地，不同深度之多數凹部可形成一換檔通道。該等凹部係特別藉由衝壓產生。 In a modified example of the present invention, a shift channel in the form of a concave portion is disposed on the outer side of the sprocket. In particular, a plurality of recesses of different depths may form a shift channel. The recesses are produced in particular by stamping.

在本發明之一改良例中，該突起係藉由該外側朝向該內側之一材料變形來實現。這在該外側產生一衝壓凹槽且在該內側產生該突起。 In a modification of the present invention, the protrusion is realized by deforming a material from the outer side toward the inner side. This produces a punched groove on the outside and the protrusion on the inside.

或者，該材料變形亦可由內側實現。在此，在該鏈輪之內側的材料藉由壓印側向地位移。這特別產生與該衝壓點相鄰之二側向突起。 Alternatively, the material deformation can also be achieved from the inside. Here, the material inside the sprocket is displaced laterally by embossing. This produces in particular two lateral protrusions adjacent to the punch point.

在本發明之一改良例中，該鏈輪具有偶數個齒。 In a modified example of the present invention, the sprocket has an even number of teeth.

在本發明之一改良例中，厚齒在該鏈輪齒總數中之比例小於50%。較佳地，厚齒在該鏈輪齒總數中之比例小於40%。特別地，厚齒在該鏈輪齒總數中之比例在37.5%與25%之間。 In an improved example of the present invention, the ratio of thick teeth to the total number of sprocket teeth is less than 50%. Preferably, the ratio of thick teeth to the total number of sprocket teeth is less than 40%. In particular, the proportion of thick teeth in the total number of sprocket teeth is between 37.5% and 25%.

例如，在具有42個齒之一鏈輪上，15個齒具有已藉由材料變形產生之一突起。在具有總共48個齒之一鏈輪的情形中，16個齒可具有藉由材料變形產生之一突起。在具有50個齒之一鏈輪的情形中，特別是18個齒具有藉由材料變形產生突起的情形。 For example, on a sprocket with 42 teeth, 15 teeth have a protrusion that has been created by deformation of the material. In the case of a sprocket with a total of 48 teeth, 16 teeth may have a protrusion created by deformation of the material. In the case of a sprocket with one of 50 teeth, in particular 18 teeth have protrusions by deformation of the material.

本發明亦有關於一種具有依據本發明之至少一鏈輪的用於安裝在一後輪軸上的多重鏈輪配置。 The invention also relates to a multiple sprocket arrangement for mounting on a rear axle with at least one sprocket according to the invention.

在本發明之一改良例中，依據本發明之至少 一鏈輪係該多重鏈輪配置之大鏈輪中的一大鏈輪。特別地，該等複數鏈輪之最大及/或第二最大鏈輪係設計成對應於依據本發明之鏈輪。 In a modified example of the present invention, according to at least the A sprocket is a large sprocket of the large sprockets of the multiple sprocket arrangement. In particular, the largest and/or the second largest sprocket train of the plurality of sprockets is designed to correspond to a sprocket according to the invention.

該多重鏈輪配置之至少另一鏈輪沒有突起且因此與依據本發明之鏈輪不同。該至少另一鏈輪宜具有奇數個齒。例如，依據本發明之多重鏈輪配置適當地具有十二個鏈輪。該等十二個鏈輪中，最大及/或第二最大鏈輪對應於依據本發明之鏈輪。其他十個比較小鏈輪對應於沒有突起之其他鏈輪。 At least one other sprocket of the multiple sprocket arrangement has no protrusions and is therefore different from a sprocket according to the invention. The at least one other sprocket preferably has an odd number of teeth. For example, a multiple sprocket arrangement in accordance with the present invention suitably has twelve sprockets. Of the twelve sprockets, the largest and/or the second largest sprocket corresponds to the sprocket according to the invention. The other ten relatively small sprockets correspond to the other sprockets without protrusions.

在本發明之一改良例中，依據本發明之該至少一鏈輪形成為一單一鏈輪。 In a modification of the present invention, the at least one sprocket according to the present invention is formed as a single sprocket.

單一鏈輪表示先製成且在一後續組裝過程中相對定位之分別地製造的鏈輪。通常，該等單一鏈輪係藉由衝壓製成。這些與通常被銑削且因此製造昂貴且複雜之製成單件的多重小齒輪配置不同。特別地，依據本發明之多重鏈輪配置的所有鏈輪形成為分開之單一鏈輪。 A single sprocket refers to separately manufactured sprockets that are first fabricated and positioned relatively in a subsequent assembly process. Typically, these single sprocket trains are made by stamping. These differ from multiple pinion arrangements which are usually milled and therefore expensive and complex to manufacture in one piece. In particular, all the sprockets of the multiple sprocket arrangement according to the present invention are formed as separate single sprockets.

在本發明之一改良例中，該等單一鏈輪未朝一徑向延伸遠至該驅動器。一轉矩未直接地而是間接地傳送至一驅動器。轉矩可藉由十字軸架間接地傳送。另一可能性是透過相鄰小齒輪釋出該轉矩至以轉矩傳送方式與該驅動器連接之一單一小齒輪；這通常是最大小齒輪。依此方式，未傳送一轉矩之這些鏈輪的鏈輪本體可具有一環狀形態且可減少重量。 In a refinement of the invention, the single sprockets do not extend as far as the drive in a radial direction. A torque is not transmitted directly but indirectly to a drive. Torque can be transmitted indirectly through the cross bracket. Another possibility is to release the torque through an adjacent pinion to a single pinion connected to the drive in a torque-transmitting manner; this is usually the largest pinion. In this way, the sprocket bodies of the sprockets that do not transmit a torque can have an annular shape and can reduce weight.

在本發明之一改良例中，該單一鏈輪藉由軸 向延伸連接裝置與一相鄰鏈輪連接。該連接裝置特別是多數銷。 In a modification of the present invention, the single sprocket is The extension connecting device is connected with an adjacent sprocket. The connection means are in particular a plurality of pins.

該單一鏈輪具有用於與下一個較大小齒輪連接之多數徑向外銷孔。此外，該單一鏈輪具有用於與下一個較小鏈輪連接之多數徑向內銷孔。該等徑向外銷孔及該等徑向內銷孔分開該單一鏈輪之齒根直徑且配置成更位於該內側。 The single sprocket has a plurality of radially outer pin holes for connection with the next larger pinion. In addition, the single sprocket has a plurality of radially inner pin holes for connection with the next smaller sprocket. The radially outer pin holes and the radially inner pin holes separate the tooth root diameter of the single sprocket and are configured to be more inwardly.

在一實施例中，其情形特別是該多重鏈輪配置之所有鏈輪形成為分別地製造之單一小齒輪且與多數銷連接。該等單一小齒輪在各情形中包括具有多數外銷孔之一徑向外孔圓及具有多數內銷孔之一徑向內孔圓。一單一小齒輪之外銷孔與下一個較大小齒輪之內銷孔配合。該單一小齒輪之內銷孔與下一個較小小齒輪之外銷孔對應地配合。分別相鄰小齒輪藉由壓入該等銷孔中之銷依此方式互相連接。由該鏈條傳送至一鏈輪之一轉矩透過該等銷連接件由一小齒輪傳送至另一小齒輪且最後透過以轉矩傳送方式與該驅動器連接之一小齒輪到達該驅動器。該多重小齒輪配置可特別便宜地製成且重量特別地輕。 In one embodiment, it is the case in particular that all the sprockets of the multiple sprocket arrangement are formed as a single pinion manufactured separately and connected with a plurality of pins. The single pinions in each case comprise a radially outer hole circle with a plurality of outer pin holes and a radial inner hole circle with a plurality of inner pin holes. The outer pin hole of a single pinion mates with the inner pin hole of the next larger pinion. The inner pin hole of the single pinion mates correspondingly with the outer pin hole of the next smaller pinion. The respective adjacent pinions are connected to each other in this manner by pins pressed into the pin holes. A torque transmitted by the chain to a sprocket is transmitted through the pin connections from one pinion to another and finally to the drive through a pinion connected to the drive in a torque-transmitting manner. This multiple pinion arrangement can be made particularly inexpensively and is particularly lightweight.

本發明亦有關於具有依據本發明之一多重小齒輪配置的一自行車驅動器，其具有：一後換檔機構；一前鏈環配置，其具有至少一鏈環，特別是一前鏈環；及一自行車鏈條。該自行車鏈條可與該鏈環且與該多重小齒輪配置之一鏈輪接合。 The present invention also relates to a bicycle drive having a multiple pinion arrangement according to the present invention, having: a rear shifting mechanism; a front chainring arrangement having at least one chainring, in particular a front chainring; and a bicycle chain. The bicycle chain is engageable with the chainring and with a sprocket of the multiple pinion arrangement.

作為該材料變形之一替代例，該等突起亦可 藉由施加材料產生。可與基底材料輕易地連接的一材料，例如塑膠，可施加在所需位置。為達此目的，該材料可施加在該第一組之齒的一側，或該等齒可藉由射出成型來封裝。為增加強度，多數組合孔可特別設置在該第一組齒上，且一液態材料通過該等組合孔射出成型。 As an alternative to the material variant, the protrusions can also be Produced by applying material. A material that can be easily attached to the base material, such as plastic, can be applied at the desired location. For this purpose, the material can be applied to one side of the teeth of the first set, or the teeth can be encapsulated by injection molding. In order to increase the strength, a plurality of combination holes can be specially arranged on the first group of teeth, and a liquid material is injection-molded through the combination holes.

或者，該第一齒組之齒可呈現相對該第二齒組之齒於一圓周方向上之一傾斜位置，使得其產生之軸向寬度依據該傾斜定位增加。該等齒之真正軸向寬度只適當地對應於該鏈輪之原料的厚度，但該傾斜定位增加在該等鏈條鏈板對之空間中的接合寬度。例如，該齒相對於該正常位置旋轉90度可產生一最大傾斜位置及在一軸向上之最大產生寬度。在該圓周方向上之齒長度則對應於產生之軸向寬度。該齒旋轉小於90度對於增加強度是較佳的。 Alternatively, the teeth of the first tooth set may exhibit an inclined position relative to the teeth of the second tooth set in a circumferential direction such that the resulting axial width increases according to the inclined position. The true axial width of the teeth corresponds only appropriately to the thickness of the material of the sprocket, but the oblique positioning increases the width of the engagement in the space of the pair of chain links. For example, a 90 degree rotation of the tooth relative to the normal position results in a maximum inclined position and a maximum generated width in an axial direction. The tooth length in the circumferential direction then corresponds to the resulting axial width. Rotation of the teeth less than 90 degrees is preferred for increased strength.

亦可想到藉由材料變形製成突起、傾斜定位或施加材料之一組合。 It is also conceivable to make protrusions by deforming the material, to position it obliquely or to apply a combination of material.

10:多重小齒輪配置 10: Multiple pinion configuration

20:(自行車)鏈條 20: (Bicycle) Chain

21:(鏈條)內鏈板；內鏈板對 21: (chain) inner chain plate; inner chain plate pair

22:(鏈條)外鏈板；外鏈板對 22: (chain) outer chain plate; outer chain plate pair

23:鏈條銷 23: Chain pin

24:鏈條滾子 24: Chain Roller

30:(前)鏈輪 30: (front) sprocket

40:換檔機構 40: Shifting mechanism

100:鏈輪；小齒輪 100: sprocket; pinion

100’:鏈環；鏈輪 100': chainring; sprocket

101:內側 101: Inside

102:外側 102: Outside

104:(外)孔；(外)銷孔 104: (outer) hole; (outer) pin hole

104’:銷孔 104': pin hole

105:(內)孔 105: (inner) hole

106,107:孔 106, 107: Holes

106’:外孔圓 106': Outer hole circle

108:腹板狀連接件 108: Web-like connector

109:(材料)孔 109: (Material) hole

111,211:(厚)齒 111, 211: (thick) teeth

112,212:(薄)齒 112, 212: (thin) teeth

113:齒尖 113: Tooth tip

114:(內)斜面 114: (Inner) Bevel

115:外斜面 115: External Bevel

116:齒根 116: Root of tooth

117:齒根圓直徑 117: Root circle diameter

120:鏈輪本體 120: sprocket body

124:凹孔 124: Recessed hole

126,126’:換檔通道 126, 126': Shift channel

127:(第一)凹部 127: (First) Recess

127’:凹部 127': Recess

128:(第二)凹部 128: (Second) Recess

129:(第三)凹部 129: (third) recess

130:突起 130: Protrusion

131:溝槽 131: Groove

132:衝壓凹槽 132: Stamping grooves

133:邊緣 133: Edge

134:斜面 134: Bevel

140:銷 140: pin

200:小齒輪 200: pinion

290:輪廓 290: Outline

B1:軸向(總)寬度 B1: Axial (total) width

B2,B4,B5:軸向寬度 B2, B4, B5: Axial width

B3:(軸向)寬度；厚度 B3: (axial) width; thickness

D1:(軸向)間距；外鏈板間距 D1: (axial) spacing; outer link plate spacing

D2:(軸向)間距；內鏈板間距 D2: (axial) spacing; inner link plate spacing

L4:長度 L4: length

α,β,γ:角度 α,β,γ: Angle

圖1顯示依據本發明之一自行車驅動器的示意圖。 FIG. 1 shows a schematic diagram of a bicycle drive according to the present invention.

圖2顯示通過一鏈條之部份截面圖。 Figure 2 shows a partial sectional view through a chain.

圖3a顯示依據本發明之一多重鏈輪配置的外側圖。 Figure 3a shows an outside view of a multiple sprocket arrangement in accordance with the present invention.

圖3b顯示圖3a之依據本發明之多重鏈輪配置的內側圖。 Figure 3b shows an inside view of the multiple sprocket arrangement of Figure 3a in accordance with the present invention.

圖4顯示沒有最大鏈輪之圖3的多重小齒輪配置的立體內側圖。 Figure 4 shows a perspective inside view of the multiple pinion configuration of Figure 3 without the largest sprocket.

圖5a顯示依據本發明之一鏈輪的外側圖。 Figure 5a shows an outside view of a sprocket according to the present invention.

圖5b顯示圖5a之依據本發明之鏈輪的內側圖。 Figure 5b shows an inside view of the sprocket according to the invention of Figure 5a.

圖6顯示圖5b之鏈輪之一齒序列的放大圖。 Figure 6 shows an enlarged view of a sequence of teeth of the sprocket of Figure 5b.

圖7顯示圖6之齒序列的示意橫截面圖。 FIG. 7 shows a schematic cross-sectional view of the tooth sequence of FIG. 6 .

圖8顯示通過該第一齒組之一齒的一橫截面的放大圖。 Figure 8 shows an enlarged view of a cross-section through one of the teeth of the first set of teeth.

圖9顯示通過該第一齒組之一齒的一縱截面的放大圖。 Figure 9 shows an enlarged view of a longitudinal section through one of the teeth of the first set of teeth.

圖10顯示通過該第二齒組之一齒的一縱截面的放大圖。 Figure 10 shows an enlarged view of a longitudinal section through one of the teeth of the second set of teeth.

圖11a顯示依據本發明之另一鏈輪的外側圖。 Figure 11a shows an outside view of another sprocket according to the present invention.

圖11b顯示圖11a之放大圖的內側圖。 Figure 11b shows an inside view of the enlarged view of Figure 11a.

圖1顯示依據本發明之一自行車驅動器的示意圖。該前鏈輪配置包含一單一前鏈輪30。該多重小齒輪配置10包含依據本發明之具有一最大小齒輪200且具有一第二最大鏈輪100的十二個小齒輪。該鏈輪30相對於該多重小齒輪配置10定向使得當該鏈條20與該等中央鏈輪中之一鏈輪接合時呈現一空轉鏈條線。該空轉鏈條線大致對應於該鏈條之理想輪廓，在此情形中事實上未產生鏈條歪斜。在最小與最大小齒輪上，該鏈條歪斜係對應地在其最大值。在所示狀態中，該自行車鏈條20與該鏈輪30之齒且與多重小齒輪配置10之最大小齒輪200的齒接合。藉由該自行車鏈條20，一力由該前鏈輪30傳送至該後多重小齒輪 配置10且由此透過一驅動器傳送至該後輪輪轂。換檔機構40使該自行車鏈條20在換檔程序中由一小齒輪移動至一相鄰小齒輪。該換檔機構在此情形中可機械地或電動地操作。在只具有一鏈輪30之所示示範實施例中，省略前變速器。在具有複數鏈輪之實施例中，該前變速器亦可電動地，特別是無線地操作。 FIG. 1 shows a schematic diagram of a bicycle drive according to the present invention. The front sprocket arrangement includes a single front sprocket 30 . The multiple pinion arrangement 10 includes twelve pinions having a largest pinion 200 and having a second largest sprocket 100 in accordance with the present invention. The sprocket 30 is oriented relative to the multiple pinion arrangement 10 such that when the chain 20 is engaged with one of the central sprockets, an idle chain line is present. The idling chain line corresponds approximately to the ideal profile of the chain, in which case virtually no chain skew occurs. On the smallest and largest pinions, the chain skew is correspondingly at its maximum value. In the state shown, the bicycle chain 20 is engaged with the teeth of the sprocket 30 and with the teeth of the largest pinion 200 of the multiple pinion arrangement 10 . With the bicycle chain 20, a force is transmitted from the front sprocket 30 to the rear multiple pinion Configuration 10 and thus transmitted to the rear wheel hub via a drive. The shifting mechanism 40 moves the bicycle chain 20 from a pinion to an adjacent pinion during a shifting procedure. The shifting mechanism can be operated mechanically or electrically in this case. In the exemplary embodiment shown, which has only one sprocket 30, the front derailleur is omitted. In embodiments with a plurality of sprockets, the front derailleur can also be operated electrically, in particular wirelessly.

圖2顯示通過一自行車鏈條20之一部份截面的平面圖。該鏈條20通常包含多數鏈條內鏈板21及多數鏈條外鏈板22。在各情形中二相對內鏈板21及外鏈板22分別形成一內與一外鏈板對。該等內鏈板21及該等外鏈板22藉由多數鏈條銷23以一交替之方式鉸接地連接。該鏈條銷23係鉚接在該外鏈板22上，這可在圖之截面區域中看到。在該等內鏈板21之軸環上具有可旋轉地安裝之鏈條滾子24，這亦可在部份截面中看到。一鏈條內鏈板對之鏈條內鏈板21配置成相對具有一軸向間距D2。一鏈條外鏈板對之鏈條外鏈板22配置成相對具有一軸向間距D1。在此，在該等鏈條外鏈板22間之間距D1比在該等鏈條內鏈板21間之間距D2大。該等間距D1與D2界定用於該多重小齒輪配置之齒的接合空間。在所示示範實施例中，該間距D2之尺寸可為2.16mm，且該間距D1之尺寸可為3.65mm。為允許俐落地接合於該鏈條20中，該多重小齒輪配置之齒的軸向寬度必須與該等間距D1與D2配合。以下將配合圖7至10更詳細地說明該等齒之軸向寬度。 FIG. 2 shows a plan view through a partial section of a bicycle chain 20 . The chain 20 generally includes a plurality of chain inner link plates 21 and a plurality of chain outer link plates 22 . In each case the two opposing inner link plates 21 and outer link plates 22 respectively form an inner and an outer link plate pair. The inner link plates 21 and the outer link plates 22 are hingedly connected by a plurality of chain pins 23 in an alternating manner. The chain pin 23 is riveted to the outer link plate 22, which can be seen in the cross-sectional area of the figure. On the collars of the inner link plates 21 there are rotatably mounted chain rollers 24, which can also be seen in partial section. The chain inner link plates 21 of a chain inner link plate pair are arranged opposite to each other with an axial distance D2. The chain outer link plates 22 of a pair of chain outer link plates are arranged to have an axial distance D1 relative to each other. Here, the distance D1 between the chain outer link plates 22 is larger than the distance D2 between the chain inner link plates 21 . The equidistant spacings D1 and D2 define engagement spaces for the teeth of the multiple pinion arrangement. In the exemplary embodiment shown, the size of the spacing D2 may be 2.16 mm, and the size of the spacing D1 may be 3.65 mm. To allow a clean engagement in the chain 20, the axial width of the teeth of the multiple pinion arrangement must match the equidistant spacings D1 and D2. The axial width of the teeth will be described in more detail below in conjunction with FIGS. 7 to 10 .

圖3a顯示依據本發明之多重小齒輪配置10 之第一實施例的外側圖。所示之多重小齒輪配置10具有十二個鏈輪。最大小齒輪200之50個齒係以一習知方式藉由銑削產生。該最大小齒輪類似地具有軸向比較大寬度之齒211及比較小寬度之齒212。該第二最大小齒輪100係依據本發明之具有42個齒的一鏈輪100，其中該第一齒組之齒111具有已藉由衝壓之產生之一突起130。總共42個齒之小齒輪100中的15個齒在該外側102具有一衝壓凹槽132，且在內側101具有一突起130。剩餘十個比較小的小齒輪沒有突起，且它們的齒具有實質相等寬度。 Figure 3a shows a multiple pinion arrangement 10 according to the present invention The outside view of the first embodiment. The multiple pinion arrangement 10 shown has twelve sprockets. The 50 tooth trains of the largest pinion 200 are produced by milling in a conventional manner. The largest pinion similarly has teeth 211 of relatively large width and teeth 212 of relatively small width in the axial direction. The second largest pinion 100 is a sprocket 100 with 42 teeth according to the present invention, wherein the teeth 111 of the first set of teeth have a protrusion 130 that has been produced by stamping. Fifteen teeth of the 42-tooth pinion 100 have a punched groove 132 on the outer side 102 and a protrusion 130 on the inner side 101 . The remaining ten smaller pinions have no protrusions and their teeth have substantially equal widths.

圖3b顯示圖3a之多重小齒輪配置10的內側圖。在此，可特別清楚地看到類似地在該內側具有多數厚齒211及多數薄齒212之最大小齒輪200。如由習知技術可知，該等薄齒212係藉由銑削由凹孔產生。在此該等厚齒211及該鏈輪本體大致對應於該起始材料之材料厚度。為減少重量，該最大小齒輪200宜由鋁製成。該小齒輪200在其徑向內圓周具有用於接合在該驅動器上之一對應相對輪廓及用於傳送轉矩至後者的一輪廓290。 Figure 3b shows an inside view of the multiple pinion arrangement 10 of Figure 3a. Here, the largest pinion 200 , which similarly has a plurality of thick teeth 211 and a plurality of thin teeth 212 on the inner side, can be seen particularly clearly. As known from the prior art, the thin teeth 212 are produced from recessed holes by milling. Here the thick teeth 211 and the sprocket body roughly correspond to the material thickness of the starting material. To reduce weight, the largest pinion 200 is preferably made of aluminum. The pinion 200 has on its radially inner circumference a corresponding opposing contour for engaging on the driver and a contour 290 for transmitting torque to the latter.

為進一步減少重量及成本，不言而喻的是該最大鏈輪可依據本發明之鏈輪100的設計來製造。換言之，該最大鏈輪之鏈輪本體對應於該起始材料之材料厚度及該等薄齒之軸向寬度。該等厚齒係藉由材料變形產生。由於減少材料及因此重量，該最大鏈輪可由比較便宜之鋼製成。 To further reduce weight and cost, it goes without saying that the largest sprocket can be manufactured according to the design of the sprocket 100 of the present invention. In other words, the sprocket body of the largest sprocket corresponds to the material thickness of the starting material and the axial width of the thin teeth. These thick tooth systems are produced by material deformation. The largest sprocket can be made of less expensive steel due to reduced material and thus weight.

圖4顯示沒有該最大小齒輪200之多重小齒 輪配置10的第一實施例的立體內側圖。在此，可看到該配置10之圓錐形結構。該多重小齒輪配置10之十二個小齒輪係藉由多數銷140連接之分別製成的單一小齒輪。為達此目的，所有小齒輪具有該等銷140壓入之多數銷孔。各小齒輪(除了最大及最小小齒輪以外)包含具有多數外孔104之一徑向外孔圓及具有多數內孔105之一徑向內孔圓。各小齒輪在各情形中藉由該內孔圓與相鄰下一個較小小齒輪連接且藉由該外孔圓與相鄰下一個較大小齒輪連接。例如，該小齒輪100藉由其外孔圓與該下一個較大小齒輪200連接且藉由其內孔圓與下一個較小小齒輪連接。該最大小齒輪200只具有一內孔圓，因為它只與該下一個較小小齒輪100連接。對應地，該最小小齒輪只具有一外孔圓，因為它只與該下一個較大小齒輪100連接。每孔圓之孔數目不同。但是，可使該等孔均勻分布在該孔圓上。例如，該鏈輪100包含具有15個均勻分布孔104之一外孔圓及具有18個均勻分布孔105之一內孔圓(關於此請參見圖5a與5b)。 FIG. 4 shows multiple pinions without the largest pinion 200 A perspective inside view of the first embodiment of the wheel arrangement 10 . Here, the conical structure of the arrangement 10 can be seen. The twelve pinion trains of the multiple pinion arrangement 10 are individually made single pinions connected by a plurality of pins 140 . For this purpose, all pinions have a plurality of pin holes into which the pins 140 are pressed. Each pinion (except the largest and smallest pinions) includes a radially outer hole circle with a plurality of outer holes 104 and a radial inner hole circle with a plurality of inner holes 105 . Each pinion is connected in each case with the adjacent next smaller pinion by the inner hole circle and with the adjacent next larger pinion by the outer hole circle. For example, the pinion 100 is connected to the next larger pinion 200 by its outer hole circle and to the next smaller pinion by its inner hole circle. The largest pinion 200 has only one inner hole circle because it is only connected to the next smaller pinion 100 . Correspondingly, the smallest pinion has only one outer hole circle, since it is only connected to the next larger pinion 100 . The number of holes in each hole circle is different. However, the holes can be distributed evenly over the hole circle. For example, the sprocket 100 includes an outer hole circle with 15 evenly distributed holes 104 and an inner hole circle with 18 evenly distributed holes 105 (see Figures 5a and 5b for this).

由多數銷140構成之所示插頭型連接允許轉矩由與該鏈條接合之小齒輪透過該該最大小齒輪200間接地傳送至該驅動器。換言之，其他鏈輪本體可具有非常窄及環狀形態，且不需要延伸遠至該驅動器。 The illustrated plug-type connection made of a plurality of pins 140 allows torque to be transferred indirectly to the drive through the largest pinion 200 from the pinion engaged with the chain. In other words, other sprocket bodies can have a very narrow and annular configuration and do not need to extend as far as the driver.

圖5a顯示該鏈輪100之外側102。該等突起130適當地朝向該內側101，但在此亦可清楚地看到該等突起130之衝壓凹槽132。該等換檔通道126配置在該鏈輪 100之外側102。該等換檔通道126具有不同深度之複數凹部127、128、129。詳而言之，一換檔通道126包含具有一第一深度之一第一凹部127、具有一第二深度之一第二凹部128、及具有一第三深度之一第三凹部129，其中該第三凹部129形成為比該第二凹部128深，且該第二凹部128形成為比該第一凹部127深。為減少該材料變形所需之力，換檔通道宜由不同深度之複數凹部製成。該等凹部之深度在二相鄰小齒輪間傳送時配合該鏈條之傾斜輪廓。由於該等突起130朝向該相對內側101，它們亦可配置在該等換檔通道126之區域中且不構成一障礙。 Figure 5a shows the outer side 102 of the sprocket 100. The protrusions 130 are appropriately oriented towards the inner side 101, but the punched grooves 132 of the protrusions 130 can also be clearly seen here. The shift passages 126 are arranged on the sprocket 100 is outside 102 . The shift channels 126 have a plurality of recesses 127, 128, 129 of different depths. Specifically, a shift channel 126 includes a first recess 127 having a first depth, a second recess 128 having a second depth, and a third recess 129 having a third depth, wherein the The third recess 129 is formed deeper than the second recess 128 , and the second recess 128 is formed deeper than the first recess 127 . In order to reduce the force required to deform the material, the shift channel is preferably made of a plurality of recesses of different depths. The depth of the recesses matches the inclined profile of the chain during transmission between two adjacent pinions. Since the protrusions 130 face the opposite inner side 101 , they can also be arranged in the area of the shift channels 126 and do not constitute an obstacle.

圖5b顯示該鏈輪100之內側101。該等厚齒111之突起130及在該等薄齒112之區域中的凹孔124都配置在這側。該等凹孔124係任選的，且具有對應於該等腰狀鏈條鏈板之輪廓的一輪廓。該等凹孔124產生用於該等鏈條內鏈板21之額外空間且因此有助於該換檔程序。 Figure 5b shows the inner side 101 of the sprocket 100. The protrusions 130 of the thick teeth 111 and the concave holes 124 in the area of the thin teeth 112 are arranged on this side. The recesses 124 are optional and have a profile that corresponds to the profile of the isosceles chain links. The recesses 124 create additional space for the chain inner links 21 and thus facilitate the shifting procedure.

分開配置在該內側101上之突起130及在該軸向外側102上之換檔通道126允許配置在相同圓周區域中。只要該鏈條20與該等齒接合，便開始提供該等突起130在該鏈輪100之內側101上的引導特性。當該鏈條20在換檔時移動脫離該等齒時，它可沿著該鏈輪100之軸向外側102滑動且不會與該等突起130碰撞。在該外側102之換檔通道126的凹部在換檔時為該鏈條20提供足夠之軸向空間。 The projections 130 arranged separately on the inner side 101 and the shifting channels 126 on the axially outer side 102 allow to be arranged in the same circumferential area. As soon as the chain 20 engages the teeth, the guiding properties of the protrusions 130 on the inner side 101 of the sprocket 100 begin to be provided. When the chain 20 moves away from the teeth during shifting, it can slide along the axially outer side 102 of the sprocket 100 without colliding with the protrusions 130 . The recess in the shift channel 126 of the outer side 102 provides sufficient axial space for the chain 20 during shifting.

該第一齒組之齒亦可選擇地不僅具有比該 第二齒組之齒大的一軸向寬度，而且形成為在一徑向上比該第二齒組之齒高。 The teeth of the first tooth group can also optionally have more than The teeth of the second tooth group have a larger axial width and are formed to be higher than the teeth of the second tooth group in a radial direction.

該鏈輪100具有環狀形態且具有複數材料孔109，且該等材料孔109在該等外與內孔圓之間產生腹板狀連接件108。 The sprocket 100 has an annular shape and has material holes 109 that create web-like connections 108 between the outer and inner hole circles.

15個外銷孔104配置在該等換檔通道126之凹部外側以便不進一步弱化已比較薄之材料。此外，該等銷孔104配置成比齒根圓直徑117徑向地更位於該內側。該外孔圓直徑因此比該齒根圓直徑117小。 Fifteen outer pin holes 104 are arranged outside the recesses of the shift channels 126 so as not to further weaken the already relatively thin material. Furthermore, the pin holes 104 are arranged radially further inward than the root circle diameter 117 . The outer hole circle diameter is therefore smaller than the root circle diameter 117 .

圖6顯示圖5b所示之鏈輪100之一三齒序列的放大圖。在此，在一圓周方向上，一薄齒112緊接在一厚齒111後，且該厚齒111又接著在一薄齒112後。換言之，一薄齒112配置在每一厚齒111前與後。這序列是必要的，以便確保該鏈條20之正確接合。由於該等厚齒111之軸向寬度B1的尺寸係作成使得它可接合在一外鏈板對22中而不是在一內鏈板對21中，該鏈條20對應地對齊。該厚齒111可只完全突入一對外鏈板22中。由於該鏈條之外與內鏈板22、21一直交替地配置，該第二齒組之一齒112必須配置在該厚齒111之上游及下游以便確保該鏈條之平順接合。相反地，該等薄齒112可接合在內鏈板對中及在外鏈板對中，且不會產生一強制序列或對齊。 Figure 6 shows an enlarged view of a three-tooth train of the sprocket 100 shown in Figure 5b. Here, in a circumferential direction, a thin tooth 112 follows a thick tooth 111 , and the thick tooth 111 follows a thin tooth 112 . In other words, a thin tooth 112 is disposed before and after each thick tooth 111 . This sequence is necessary to ensure proper engagement of the chain 20 . Since the axial width B1 of the thick tooth 111 is dimensioned so that it can engage in an outer pair of link plates 22 rather than an inner pair of link plates 21, the chain 20 is aligned accordingly. The thick teeth 111 can only fully protrude into the pair of outer link plates 22 . Since the outer and inner link plates 22, 21 of the chain are always alternately arranged, a tooth 112 of the second tooth set must be arranged upstream and downstream of the thick tooth 111 in order to ensure a smooth engagement of the chain. Conversely, the thin teeth 112 can engage in the inner link plate pair as well as in the outer link plate pair without creating a forced sequence or alignment.

此外，在該內側101之放大圖中，可清楚地看到該突起130由該齒尖113延伸至該齒根116。但是該突起130未延伸超出該齒根圓直徑117。與該等厚齒111接合 的該鏈條之腰狀外鏈板(在此未圖示)未通過超出該齒根圓直徑117。因此，在鏈條與突起130間不會產生互動，所以不需要超出該齒根圓直徑117之一長度。該等突起130可保持為小。但是，該等突起130之矩形及該長度L4提供足夠表面積以確保該等鏈條外鏈板22之適當引導。 In addition, in the enlarged view of the inner side 101 , it can be clearly seen that the protrusion 130 extends from the tooth tip 113 to the tooth root 116 . But the protrusion 130 does not extend beyond the root circle diameter 117 . Engage with the thick teeth 111 The waist-shaped outer link plate (not shown here) of the chain does not pass beyond the root circle diameter 117. Therefore, there is no interaction between the chain and the protrusions 130, so there is no need to exceed a length of the root circle diameter 117. The protrusions 130 can be kept small. However, the rectangular shape of the protrusions 130 and the length L4 provide sufficient surface area to ensure proper guidance of the chain outer link plates 22 .

此外，未突出超過該齒根圓直徑117之一突起130提供該等衝壓且變形之鏈輪100可以稍微旋轉地相對偏移之方式堆疊的優點。這在生產及運輸時有助於處理。 In addition, a protrusion 130 that does not protrude beyond the root circle diameter 117 provides the advantage that the stamped and deformed sprockets 100 can be stacked in a manner that is slightly rotationally relative to each other. This facilitates handling during production and shipping.

圖7以一示意橫截面顯示圖6之齒序列。在此，該等厚齒111及薄齒112之不同軸向寬度特別清楚。該等厚齒111之軸向寬度B1比該等二相鄰薄齒112之軸向寬度B2大很多。在此，該等薄齒112之寬度B2大致對應於該起始材料之寬度。由於材料位移形成在該內側101上之該突起130產生該加大寬度B1。在該外側102可看到該衝壓凹槽132。 Figure 7 shows the tooth sequence of Figure 6 in a schematic cross section. Here, the different axial widths of the thick teeth 111 and the thin teeth 112 are particularly clear. The axial width B1 of the thick teeth 111 is much larger than the axial width B2 of the two adjacent thin teeth 112 . Here, the width B2 of the thin teeth 112 roughly corresponds to the width of the starting material. The enlarged width B1 is created by the protrusion 130 formed on the inner side 101 due to material displacement. The punched groove 132 can be seen on the outer side 102 .

在所示實施例中，該等厚齒111之軸向寬度B1對應於大約2.5mm，且該等薄齒112之軸向寬度B2對應於大約1.7mm。因此，在一相鄰厚與薄齒111、112間之差係0.8mm。但是，這差只存在形成該突起130之該軸向內側。該突起130之軸向寬度B4由在該內鏈板間距D2與該外鏈板間距D1間之差值產生，且該差值在此情形中係大約1.6mm。由於該突起130只形成在一側，該差值除以2而產生具有一0.8mm之寬度的一突起。該突起130在 該內側101上之單側配置可確保適當鏈條引導且不會不利地影響換檔行為。 In the illustrated embodiment, the axial width B1 of the thick teeth 111 corresponds to about 2.5 mm, and the axial width B2 of the thin teeth 112 corresponds to about 1.7 mm. Therefore, the difference between an adjacent thick and thin tooth 111, 112 is 0.8 mm. However, this difference exists only in the axial inner side where the protrusion 130 is formed. The axial width B4 of the protrusion 130 results from the difference between the inner link plate distance D2 and the outer link plate distance D1, and the difference is about 1.6 mm in this case. Since the protrusion 130 is only formed on one side, the difference is divided by 2 to produce a protrusion having a width of 0.8 mm. The protrusion 130 is This single-sided configuration on the inner side 101 ensures proper chain guidance without adversely affecting shifting behavior.

配合圖2與圖7所述之鏈條20的尺寸，特別是該等齒111、112之軸向間距D1、D2及軸向寬度B1與B2的尺寸產生該等齒接合在該鏈條中之某種填塞度。具有該軸向寬度B1之該第一齒組的齒111填塞該等外鏈板對22之對應軸向間距D1的大約65%至85%。在所示示範實施例中，接合在一外鏈板對22中之該第一齒組的齒111的填塞度係68%。具有該軸向寬度B1之該第二齒組的齒112類似地填塞該等內鏈板對21之對應軸向間距D2的大約65%至85%。在所示示範實施例中，接合在一內鏈板對21中之該第二齒組的齒112的填塞度係大約79%。 In accordance with the dimensions of the chain 20 described in Figures 2 and 7, in particular the axial distances D1, D2 and the axial widths B1 and B2 of the teeth 111, 112, the teeth are engaged in a certain way in the chain. packing degree. The teeth 111 of the first tooth set having the axial width B1 fill about 65% to 85% of the corresponding axial spacing D1 of the outer link plate pairs 22 . In the exemplary embodiment shown, the packing of the teeth 111 of the first tooth set engaging in an outer link plate pair 22 is 68%. The teeth 112 of the second tooth set having the axial width B1 similarly fill about 65% to 85% of the corresponding axial spacing D2 of the inner link plate pairs 21 . In the exemplary embodiment shown, the packing of the teeth 112 of the second set of teeth engaged in an inner link plate pair 21 is approximately 79%.

圖8顯示通過一厚齒111之放大橫截面。該截面相對於該徑向線正交地延伸。該厚齒111在一軸向側，特別是在該齒111之內側101具有一突起130。該突起130係藉由材料變形，特別是衝壓產生。為達此目的，一衝壓工具由該外側102於該內側101之方向抵壓該鏈輪100。在該製程中，該材料於一軸向由該外側朝向該內側變形或位移。在這示範實施例中，該材料變形使得該突起130具有一0.8mm之軸向寬度B4。在此，在該外側102之衝壓凹槽132的深度大致對應於在該內側101之突起130的軸向寬度B4。換言之，在該外側102之衝壓凹槽132大約0.8mm深，且產生類似地測得大約0.8mm之一突起130。為確保特別準確地形成該突起130，該衝壓凹槽132 之尺寸可作成比該突起130之寬度B4稍深。一稍微較深之衝壓凹槽132可確保足夠材料可供形成該突起130。橫截面呈U形或V形形態之所示突起130可特別容易地衝壓及脫模。該突起130之長度L4配合該等鏈板中間空間之長度，且尺寸必須作成比這些鏈板中間空間之長度小。所示之突起130特別具有一大約1.7mm之長度L4。該突起130之兩側具有一傾斜輪廓且特別相對於該鏈輪之表面呈一105°之角度α。該衝壓凹槽132之長度及傾斜角類似地大致對應於該突起130之長度及傾斜角。在該內側101上與該突起130相鄰地側向延伸之多數溝槽131類似地促進該衝壓能力且確保形成在該外側102上的該衝壓凹槽132之邊緣133俐落地脫模。 FIG. 8 shows an enlarged cross-section through a thick tooth 111 . The cross section extends orthogonally with respect to the radial line. The thick tooth 111 has a protrusion 130 on one axial side, especially the inner side 101 of the tooth 111 . The protrusions 130 are produced by material deformation, in particular stamping. For this purpose, a punching tool presses the sprocket 100 from the outer side 102 in the direction of the inner side 101 . During the process, the material is deformed or displaced from the outer side toward the inner side in an axial direction. In this exemplary embodiment, the material is deformed such that the protrusion 130 has an axial width B4 of 0.8 mm. Here, the depth of the punched groove 132 on the outer side 102 approximately corresponds to the axial width B4 of the protrusion 130 on the inner side 101 . In other words, the punched groove 132 on the outer side 102 is about 0.8 mm deep and produces a protrusion 130 that similarly measures about 0.8 mm. To ensure particularly accurate formation of the protrusion 130, the punched groove 132 The size can be made slightly deeper than the width B4 of the protrusion 130 . A slightly deeper punched groove 132 ensures that sufficient material is available to form the protrusion 130 . The illustrated protrusions 130, which are U-shaped or V-shaped in cross-section, can be punched and demolded particularly easily. The length L4 of the protrusion 130 matches the length of the intermediate spaces of the link plates, and the size must be made smaller than the length of the intermediate spaces of the link plates. The protrusion 130 shown particularly has a length L4 of about 1.7 mm. Both sides of the protrusion 130 have an inclined profile and in particular form an angle α of 105° with respect to the surface of the sprocket. The length and inclination angle of the punched groove 132 similarly roughly correspond to the length and inclination angle of the protrusion 130 . A plurality of grooves 131 extending laterally adjacent the protrusion 130 on the inner side 101 likewise facilitate the punching capacity and ensure that the edges 133 of the punched groove 132 formed on the outer side 102 are cleanly demolded.

該厚齒111之軸向總寬度B1係由鏈輪本體120之軸向寬度B3與該突起130之軸向寬度B4的和形成。為節省材料，該鏈輪本體120之軸向寬度B3宜對應於該起始材料/原料之軸向寬度。在所示示範實施例中，該軸向寬度B1之尺寸係2.5mm，該原料之寬度B3之尺寸係1.8mm，且該突起130之軸向寬度B4的尺寸係0.8mm。所有尺寸規格遵守一般製造公差。 The total axial width B1 of the thick teeth 111 is formed by the sum of the axial width B3 of the sprocket body 120 and the axial width B4 of the protrusion 130 . To save material, the axial width B3 of the sprocket body 120 should preferably correspond to the axial width of the starting material/raw material. In the exemplary embodiment shown, the dimension of the axial width B1 is 2.5 mm, the dimension of the width B3 of the raw material is 1.8 mm, and the dimension of the axial width B4 of the protrusion 130 is 0.8 mm. All dimensions comply with general manufacturing tolerances.

圖9顯示通過該厚齒111之縱截面。在此亦可清楚地看到在該外側102之衝壓凹槽132及在該內側101之對應突起130。此外，該厚齒111之軸向寬度B1與該鏈輪本體120之其餘部分的軸向寬度B1大不相同。在這圖中，可看見在該厚齒111之齒尖上的外斜面115及內斜 面114。該厚齒111之外斜面115尺寸在這情形中係作成具有一45°之角度β。在該齒上之內斜面114轉變成在該突起130上之斜面134(斜面114與134都具有一45°之角度γ)。以一連續方式由該齒尖延伸至該齒111之最厚點的一斜面114、134確保該齒111儘可能快地滑入該外鏈板22，且到達最佳引導位置。 FIG. 9 shows a longitudinal section through the thick tooth 111 . The punched recesses 132 on the outer side 102 and the corresponding protrusions 130 on the inner side 101 can also be clearly seen here. In addition, the axial width B1 of the thick teeth 111 is substantially different from the axial width B1 of the rest of the sprocket body 120 . In this figure, the outer slope 115 and the inner slope on the tooth tip of the thick tooth 111 can be seen face 114. The outer slope 115 of the thick tooth 111 is dimensioned in this case to have an angle β of 45°. The inner slope 114 on the tooth transforms into a slope 134 on the protrusion 130 (the slopes 114 and 134 both have an angle γ of 45°). An inclined surface 114, 134 extending in a continuous manner from the tooth tip to the thickest point of the tooth 111 ensures that the tooth 111 slides into the outer link plate 22 as quickly as possible and reaches the optimal guiding position.

相對於此，圖10顯示通過該薄齒112之縱截面。該薄齒112之軸向寬度B2實質對應於該鏈輪本體120，換言之，對應於該起始材料之軸向寬度B3。在所示示範實施例中，該薄齒112具有一凹孔124，其輪廓配合該鏈條鏈板之形狀。該凹孔124具有尺寸為0.1mm之一軸向寬度B5。在這情形中，該薄齒112之軸向寬度B2(1.7mm)因此比該鏈輪本體120之軸向寬度B3(1.8mm)小0.1mm。該薄齒112亦在該齒尖具有一外斜面115及一內斜面114。在該薄齒112上之外斜面115尺寸在這情形中具有一類似45°之角度β。相反地，該薄齒112之內斜面114具有一50°之角度γ。在此亦可看到一外銷孔104。 In contrast, FIG. 10 shows a longitudinal section through the thin tooth 112 . The axial width B2 of the thin teeth 112 substantially corresponds to the sprocket body 120, in other words, the axial width B3 of the starting material. In the exemplary embodiment shown, the thin tooth 112 has a recess 124 whose profile matches the shape of the chain link. The recessed hole 124 has an axial width B5 with a dimension of 0.1 mm. In this case, the axial width B2 (1.7 mm) of the thin teeth 112 is therefore 0.1 mm smaller than the axial width B3 (1.8 mm) of the sprocket body 120 . The thin tooth 112 also has an outer slope 115 and an inner slope 114 at the tip of the tooth. The outer bevel 115 dimension on the thin tooth 112 in this case has an angle β like 45°. Conversely, the inner slope 114 of the thin tooth 112 has an angle γ of 50°. An outer pin hole 104 can also be seen here.

可想到該等厚與薄齒之齒尖可配置成在一軸向上相對偏移。 It is conceivable that the tips of the thick and thin teeth may be configured to be offset relative to each other in an axial direction.

圖11a與11b顯示圖5所示及所述之該等銷孔104的另一種配置。圖11a顯示具有厚與薄齒111、112之一鏈環100’的外側102。在另一實施例中，該等換檔通道126’亦適當地藉由衝壓製成，但由該內側101朝向該外側102推出該材料。該等換檔通道126’或凹部127’之推出材 料可在圖11b中之內側101的放大圖中特別清楚地看到。該鏈輪本體120之材料厚度或軸向寬度B3維持不變。在亦配置該等突起130之內側101上，該等換檔通道126’之額外材料不構成一障礙。 Figures 11a and 11b show another configuration of the pin holes 104 shown and described in Figure 5 . Figure 11a shows the outer side 102 of one of the links 100' with thick and thin teeth 111,112. In another embodiment, the shift channels 126' are also suitably stamped, but the material is pushed out from the inner side 101 towards the outer side 102. The push-out material of the shift channels 126' or recesses 127' The material can be seen particularly clearly in the enlarged view of the inner side 101 in Figure 11b. The material thickness or axial width B3 of the sprocket body 120 remains unchanged. On the inner side 101 where the protrusions 130 are also arranged, the additional material of the shift channels 126' does not constitute an obstacle.

相對於此，前述實施例之換檔通道126或凹部係藉由衝壓只形成在該內側101，但在外側102看不到，換言之，在該換檔通道126之區域中的材料厚度比該起始材料之厚度B3小。因此，該結構不可能被在該等換檔通道126之區域中的銷孔104進一步弱化。在這另一實施例中，由於在該等換檔通道126’之區域中未發生材料弱化，該等銷孔104’可配置在該等換檔通道126’內。不再需要將該等孔重新分配在該等換檔通道之區域外。由於沒有該等限制，較少銷孔104’，在這情形中為14而非15個外孔104，可沿該鏈輪100’之外孔圓106’均勻地分布。 In contrast to this, the shift channel 126 or the recess of the previous embodiment is formed by stamping only on the inner side 101, but not visible on the outer side 102, in other words, the material thickness in the region of the shift channel 126 is thinner than the The thickness B3 of the starting material is small. Therefore, the structure cannot be further weakened by the pin holes 104 in the region of the shift channels 126 . In this alternative embodiment, the pin holes 104' may be disposed within the shift channels 126' as no material weakening occurs in the region of the shift channels 126'. It is no longer necessary to redistribute the holes outside the area of the shift channels. Without this limitation, fewer pin holes 104', in this case 14 instead of 15 outer holes 104, can be distributed evenly along the outer hole circle 106' of the sprocket 100'.

基本上，可藉由適當模塑工具產生不同種類之衝壓成形物。不是如在具有該突起130及該等換檔通道126’之情形地將該材料由一側推出至另一側(在兩側變形)，就是如在具有該等換檔通道126及該等凹孔124之情形地只在一選擇側實施該變形(在一側變形)。因為該材料不能移動，所以在一側變形需要比在兩側變形高很多之衝壓力。 Basically, different kinds of stampings can be produced by means of suitable moulding tools. Either push the material from side to side (deform on both sides) as in the case with the protrusions 130 and the shift channels 126', or as in the case with the shift channels 126 and the recesses In the case of the hole 124, this deformation (deformation on one side) is carried out only on a selected side. Because the material cannot move, deforming on one side requires a much higher punching force than deforming on both sides.

由該初始材料厚度開始，先粗略地預衝壓該等鏈輪100之齒及孔109。接著衝壓該等換檔通道126、凹孔124及突起130。該衝壓可在多數步驟中實施且產生該 最終材料厚度。該等齒輪廓及該等鏈輪輪廓最後再次接受一精確衝壓程序。 Starting from the initial material thickness, the teeth and holes 109 of the sprockets 100 are roughly pre-stamped. The shift channels 126 , recesses 124 and protrusions 130 are then punched. The stamping can be carried out in a number of steps and produces the Final material thickness. The tooth profiles and the sprocket profiles are finally again subjected to a precise stamping procedure.

100‧‧‧鏈輪；小齒輪 100‧‧‧sprocket; pinion

102‧‧‧外側 102‧‧‧Outside

104‧‧‧(外)孔；(外)銷孔 104‧‧‧(outer) hole; (outer) pin hole

105‧‧‧(內)孔 105‧‧‧(inner) hole

106,107‧‧‧孔 106,107‧‧‧holes

108‧‧‧腹板狀連接件 108‧‧‧Web connection

109‧‧‧(材料)孔 109‧‧‧(Material) Hole

111‧‧‧(厚)齒 111‧‧‧(thick) teeth

112‧‧‧(薄)齒 112‧‧‧(thin) teeth

126‧‧‧換檔通道 126‧‧‧Shift channel

127‧‧‧(第一)凹部 127‧‧‧(First) Recess

128‧‧‧(第二)凹部 128‧‧‧(Second) Recess

129‧‧‧(第三)凹部 129‧‧‧(Third) Recess

132‧‧‧衝壓凹槽 132‧‧‧Stamping grooves

Claims (18)

一種用於多重鏈輪配置之鏈輪，該多重鏈輪配置係用於可旋轉地安裝在一後輪軸上及用於與具有鏈條內鏈板對及鏈條外鏈板對之一自行車鏈條接合，其中該鏈輪在一軸向內側與一相對位置之軸向外側間具有一平坦鏈輪本體及形成在該鏈輪之一圓周上的複數齒，其中該等複數齒包含：一第一齒組中之至少一齒，該至少一齒之軸向寬度尺寸係作成比一鏈條內鏈板間距大且比一鏈條外鏈板間距小；及一第二齒組之多數齒，該等多數齒之軸向寬度尺寸係作成比該鏈條內鏈板間距小，其中，於一圓周方向看時，設有至少一三齒序列，其中該第二齒組之一齒、該第一齒組之一齒、及該第二齒組之另一齒係直接依序配置，其中該第一齒組中之至少一齒在一軸向上具有藉由一材料變形而產生之一突起，該鏈輪之特徵在於：該第一齒組之齒在齒總數中之比例小於50%。 A sprocket for a multiple sprocket arrangement for rotatably mounting on a rear axle and for engaging a bicycle chain having a pair of inner chain plates and an outer pair of chain plates, Wherein the sprocket has a flat sprocket body and a plurality of teeth formed on a circumference of the sprocket between an axial inner side and a relative axial outer side, wherein the plurality of teeth include: a first tooth group At least one of the teeth, the axial width dimension of the at least one tooth is made larger than the distance between the inner link plates of a chain and smaller than the distance between the outer link plates of a chain; and a plurality of teeth of a second tooth group, the plurality of teeth The axial width dimension is made smaller than the distance between the inner link plates of the chain, wherein, when viewed in a circumferential direction, there are at least one three-tooth series, wherein one tooth of the second tooth group, one tooth of the first tooth group , and another tooth system of the second tooth group is directly arranged in sequence, wherein at least one tooth in the first tooth group has a protrusion produced by a material deformation in an axial direction, and the sprocket is characterized by: The ratio of the teeth of the first tooth group to the total number of teeth is less than 50%. 如請求項1之鏈輪，其中該鏈輪本體具有一軸向寬度，該軸向寬度實質地對應於該第二齒組之該等齒的軸向寬度，且比該第一齒組中之該至少一齒的軸向寬度小。 The sprocket of claim 1, wherein the sprocket body has an axial width that substantially corresponds to the axial width of the teeth of the second set of teeth, and is larger than the width of the teeth of the first set of teeth The axial width of the at least one tooth is small. 如請求項1或2之鏈輪，其中該突起係 形成在該鏈輪之該軸向內側。 The sprocket of claim 1 or 2, wherein the protrusion is is formed on the axial inner side of the sprocket. 如請求項1或2之鏈輪，其中該突起係於一徑向方向由該第一齒組中之該至少一齒的一齒尖延伸至一齒根。 2. The sprocket of claim 1 or 2, wherein the protrusions extend in a radial direction from a tip to a root of the at least one tooth in the first set of teeth. 如請求項1或2之鏈輪，其中該突起係於一徑向方向延伸至齒根圓但未延伸進入該齒根圓之一內側。 2. The sprocket of claim 1 or 2, wherein the protrusions extend in a radial direction to the root circle but do not extend into an inside of the root circle. 如請求項1或2之鏈輪，其中當朝與一徑向線正交之一截面看時，該突起具有一U形或V形形態。 The sprocket of claim 1 or 2, wherein the protrusion has a U-shaped or V-shaped configuration when viewed in a cross-section perpendicular to a radial line. 如請求項1或2之鏈輪，其中該鏈輪在其內側具有用於收納一鏈條內鏈板在該第二齒組之該等齒區域中的一凹孔。 2. The sprocket of claim 1 or 2, wherein the sprocket has on its inner side a recess for receiving a chain inner link plate in the region of the teeth of the second set of teeth. 如請求項1或2之鏈輪，其中該鏈輪在其外側具有呈一凹部之形態的至少一換檔通道。 The sprocket of claim 1 or 2, wherein the sprocket has at least one shift channel in the form of a recess on its outer side. 如請求項1或2之鏈輪，其中該突起之材料變形係由該內側或由該外側產生。 A sprocket as claimed in claim 1 or 2, wherein the material deformation of the protrusion is produced by the inner side or by the outer side. 如請求項1或2之鏈輪，其中該突起之材料變形係藉由壓印來產生。 A sprocket as claimed in claim 1 or 2, wherein the material deformation of the protrusion is produced by embossing. 如請求項1或2之鏈輪，其中該鏈輪包含偶數之總齒數。 The sprocket of claim 1 or 2, wherein the sprocket contains an even number of total teeth. 如請求項1或2之鏈輪，其中該第一齒組之齒在齒總數中之比例小於40%。 The sprocket of claim 1 or 2, wherein the ratio of the teeth of the first tooth group to the total number of teeth is less than 40%. 一種多重鏈輪配置，用於旋轉地安裝在一後輪軸上，其中該多重鏈輪配置包含至少一如請求項1 至12中任一項之鏈輪。 A multiple sprocket arrangement for rotatably mounting on a rear axle, wherein the multiple sprocket arrangement comprises at least one as claimed in claim 1 Sprockets to any of 12. 如請求項13之多重鏈輪配置，其中該至少一鏈輪係該多重鏈輪配置之數個大鏈輪中的一大鏈輪。 The multiple sprocket arrangement of claim 13, wherein the at least one sprocket is a large sprocket of the plurality of large sprockets of the multiple sprocket arrangement. 如請求項13或14之多重鏈輪配置，其中該至少一鏈輪係形成為一單一鏈輪。 The multiple sprocket arrangement of claim 13 or 14, wherein the at least one sprocket train is formed as a single sprocket. 如請求項15之多重鏈輪配置，其中該單一鏈輪係藉由軸向延伸連接裝置而與一相鄰鏈輪連接。 The multiple sprocket arrangement of claim 15, wherein the single sprocket train is connected to an adjacent sprocket by an axially extending connection. 如請求項16之多重鏈輪配置，其中該單一鏈輪具有用以與下一個較大鏈輪連接之徑向外銷孔及/或用以與下一個較小鏈輪連接之徑向內銷孔。 The multiple sprocket arrangement of claim 16, wherein the single sprocket has radially outer pin holes for connection with the next larger sprocket and/or radially inner pin holes for connection with the next smaller sprocket. 一種自行車驅動器，其包含：一如請求項13至17中任一項之多重鏈輪配置；一後換檔機構；一前鏈環配置，其具有至少一鏈環；及一自行車鏈條，其可與該鏈環且與該多重鏈輪配置之一鏈輪接合。 A bicycle drive comprising: a multiple sprocket arrangement as claimed in any one of claims 13 to 17; a rear shift mechanism; a front chainring arrangement having at least one chainring; and a bicycle chain that can Engaged with the chainring and with one of the sprockets of the multiple sprocket arrangement.
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